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What this listing tells us
This architectural masterpiece offers 7,000 sq. ft. of luxurious living space with 4+2 bedrooms, 6 bathrooms, an incredible resort-style backyard oasis, and a fully finished basement with separate entrance. Set on an 85 x 135 ft. lot in a mature Ancaster neighbourhood, just one minute to highway access and all Power Centre amenities, this dream home impresses with striking curb appeal, professional landscaping, and an oversized triple garage with 14 ft. ceilings and two car lifts. The grand foyer with a soaring 21 ft. ceiling and curved staircase opens to a sophisticated interior featuring bold millwork, expansive porcelain, and wide-plank hardwood all illuminated by massive windows allowing plenty of natural light. The main level boasts formal living and dining rooms with 12 ft. ceilings, a private office, powder room, mudroom, and a gourmet eat-in kitchen with top-tier appliances. A 4-season sunroom with radiant in-floor heating and a family room with 11 ft. ceiling and stone fireplace create the perfect entertaining spaces. Upstairs, the sensational primary suite includes custom built-ins, spa-inspired 5-piece bath, private balcony, walk-in closet, and a custom dressing room fit for any wardrobe. Three additional bedrooms, all with ensuite baths (heated floors), and bedroom-level laundry complete the upper level. The finished lower level offers a recreation area, home theatre, 2 bedrooms, full bath, second laundry, and kitchenetteideal for family enjoyment or a multigenerational in-law suite. Step outside to a private resort-style retreat with heated saltwater pool (waterfalls, lights, fire features), sunken hot tub, outdoor kitchen with pizza oven, extensive hardscaping, artificial turf, storage shed, and an elite K-Array sound system. Upgrades include Control4 automation, integrated security with cameras, whole-home sound, and dual furnaces, A/Cs, and HRVs for comfort and efficiency. A rare opportunity to own one of Ancasters most extraordinary residences!
Cleaned for readability — original MLS® text was lightly de-abbreviated and decapitalized.
Listing, price, and tax history
Every previous listing of this property, every list-price change, and 5 years of estimated annual property tax — switch tabs to drill in.
| Date | Event | Status | Price | Change | MLS® | View |
|---|---|---|---|---|---|---|
| May 28, 2026 | Previously listed | New | $3,695,000 | — | X13209994 | View |
| Apr 4, 2026 | Previously listed | Ter | $3,995,000 | — | X12957114 | View |
| Sep 24, 2025 | ListedCurrent | For sale | $3,995,000 | — | X12427838 | This page |
Inside this property
Systems, finishes, room dimensions, and building information — pulled from the full MLS® feed.
Features & systems
Heating, cooling, parking, exterior, lot, possession, and more.
Systems
5- Heating
- Forced Air
- Air conditioning
- Central Air
- Fireplaces
- 2
- Water source
Getting around, schools & the block
Walkability and transit, the nearest schools, an interactive map of the exact spot, and what's nearby.
Points of interest classified by the MLS® feed.
- Golf
- Hospital
- Park
- Rec./Commun.Centre
The money — monthly cost, mortgage & return
Everything financial in one place: what you'd pay each month, a live mortgage calculator at the asking price, and what it could return as a rental.
Cost of ownership
A monthly snapshot at typical assumptions — personalize the mortgage just below.
How this home sits in the Hamilton market
Live neighbourhood stats, the closed sales you'd negotiate against, and comparable active listings.
The Hamilton market right now
Average sold price, days on market, and closed-transaction count for Hamilton — sourced from MLS®.
- Avg sold price$766,713Last 30 days
- Median sold price$695,000Middle of the market
- Days on market35 dAvg from list to close
- Closed last 30d1,439MLS® transactions
We'll get you into 100 Seneca Drive — the seller pays our commission
On every MLS® listing in Canada, the seller's brokerage pays a cooperating commission to whoever brings the buyer. Buyer representation is free to you.
$0 to you. The seller pays our fee.
On every MLS® listing in Canada, the seller's brokerage advertises a cooperating commission for the buyer's agent. A Coldwell Banker Summit Realty agent represents you — you owe us nothing.
Property flags & disclosures
An automated scan of public records and news for anything a buyer should know about this specific address — liens, outstanding work orders, or stigma-related history. We never invent flags.
We scanned public records and news for liens, outstanding work orders, and stigma-related history (e.g. a former grow-op or fire) at 100 Seneca Drive and found nothing flagged. We re-check automatically as new records publish.
Common questions about this property
Tap a question to expand the answer. Short, direct answers tuned for AI search and voice assistants.
How much is 100 Seneca Drive listed for?
100 Seneca Drive is listed at $3,995,000 on the MLS® (listing X12427838). The price refreshes on Summitly within minutes of any MLS® change.
How many bedrooms, bathrooms, and square feet does 100 Seneca Drive have?
Coldwell Banker Summit Realty is a RECO-licensed Ontario real estate brokerage, independently owned and operated. Mortgage financing is arranged through Mortgage Squad Advisors. Summitly is the technology platform that powers this site. Listing data is sourced from MLS® and is provided for informational purposes only — not guaranteed accurate by the MLS® or its members. The trademarks REALTOR®, REALTORS®, and the REALTOR® logo are controlled by the Canadian Real Estate Association (CREA) and identify real estate professionals who are members of CREA. The Coldwell Banker® name and logo are trademarks of Coldwell Banker Real Estate LLC.
